Needling cloth grabbing mechanism

Abstract

The utility model relates to sewing equipment, in particular to a needling cloth grabbing mechanism, which comprises a cloth grabbing block and a plurality of slender needles, and is different from the prior art in that the lower end face of the cloth grabbing block is provided with a groove penetrating through the front side face and the rear side face of the cloth grabbing block. The local part of the cloth piece on the uppermost layer arches up and enters the groove; a plurality of axially horizontal needle holes penetrating through the groove are formed in the position, close to the lower end face of the cloth grabbing block, of the right side face of the cloth grabbing block, the needles are in clearance fit with the needle holes respectively, and needle tips of the needles penetrate into or out of a cloth piece entering the groove through the needle holes under the action of a driving mechanism. Compared with the prior art, the cloth grabbing stability and needling durability are improved, and an automatic solution which is efficient, reliable and high in cost efficiency is provided for the garment processing industry.

Description

Technical Field

[0001] The utility model relates to sewing equipment, in particular to a needle-punching cloth-grabbing mechanism. Background Art

[0002] At present, most garment processing factories use manual methods to take cloth for pressing and sewing, which has a low degree of automation and high production costs. With the continuous increase in labor costs, it is an inevitable trend to use automated equipment to replace manual labor. The utility model patent with publication number CN204151541U discloses a suction nozzle with the functions of grabbing cloth and pressing and moving cloth, and specifically discloses that the cloth pressing needle extends from the cloth suction hole 11 and is inserted into the cloth, so that when the cloth pressing cylinder presses the cloth and moves, the cloth will not fall off or slip, and stable cloth transfer can be achieved. However, since the axial direction of the cloth pressing needle is perpendicular to the plane of the cloth piece, negative pressure is still required to absorb the cloth piece, and the structure is relatively complicated. Utility Model Content

[0003] In order to overcome the defects of the prior art, the utility model discloses a needle-punched cloth-grabbing mechanism that does not require negative pressure to absorb the cloth piece, and the technical solution adopted is:

[0004] A needle-punched cloth-grabbing mechanism comprises a cloth-grabbing block which is in the shape of a cube as a whole and a plurality of slender needles. Different from the prior art, a groove which runs through the front and rear sides of the cloth-grabbing block is provided on the lower end face of the cloth-grabbing block. When the cloth-grabbing block presses against a stack or a piece of cloth on a horizontal surface, a part of the uppermost cloth piece is arched and enters the groove. A plurality of axially horizontal needle holes which run through the groove are provided on the right side face of the cloth-grabbing block, near the lower end face thereof. The plurality of needles are respectively matched with the gaps of the plurality of needle holes. Under the action of a driving mechanism, the needle tips of the needles pass through the needle holes and penetrate into or out of the cloth piece which enters the groove.

[0005] Furthermore, a plurality of axially horizontal auxiliary needle holes penetrating the grooves are provided on the left side of the cloth grabbing block, near its lower end surface. The plurality of auxiliary needle holes correspond one to one with the plurality of needle holes, and the needle tip of the acupuncture can enter or leave the auxiliary needle hole under the action of the driving mechanism.

[0006] Furthermore, the driving mechanism includes a cylinder with a stroke in the left and right directions, and also includes a groove-type seat body. The cylinder is fixedly mounted at the right end of the groove-type seat body, and the cloth grabbing block is fixedly mounted at the left end of the groove-type seat body. A needle seat is fixedly mounted on the piston rod of the cylinder, and multiple needles are fixedly mounted on the needle seat. More than two guide rods with axial directions in the left and right directions are also fixedly mounted on the needle seat, and more than two guide holes corresponding to the guide rods are also provided on the cloth grabbing block, and the guide rods and the guide holes are slidably matched.

[0007] Furthermore, the right side surface and / or the left side surface of the groove is a slope surface expanding downwardly and outwardly.

[0008] Furthermore, a circumvention hole for circumventing the piston rod is provided in the middle of the right side surface of the cloth grabbing block.

[0009] Furthermore, it also includes an adjusting plate whose size is slightly smaller than that of the groove and one or more gaskets, and the screw rods of a plurality of fastening screws pass through the adjusting plate and the gasket and are screwed to the cloth grabbing block.

[0010] Furthermore, the lower surface of the regulating sheet is provided with damping protrusions arranged vertically and horizontally.

[0011] Compared with the prior art, the beneficial technical effects of the utility model are:

[0012] 1. Improved fabric grabbing stability:

[0013] The needles penetrate the fabric horizontally, so that the fabric has a larger contact area with the needles when it is penetrated, thereby increasing friction and reducing the shedding or slipping of the fabric during movement.

[0014] This design also allows the fabric to be evenly distributed on the needle punch, avoiding deformation or damage caused by excessive local force on the fabric.

[0015] 2. Limiting effect of acupuncture:

[0016] The limiting effect of the needle hole on the needle ensures the accuracy and stability of the needle when it penetrates into and out of the fabric, and prevents the needle from being deflected or bent due to the pulling of the fabric.

[0017] The stopper effect also helps protect the needles and prolong their service life, because the fabric does not exert excessive lateral forces on the needles, reducing the risk of the needles breaking or deforming.

[0018] 3. Ease of operation:

[0019] Since the needle is inserted into the fabric horizontally, the operator can more easily control the penetration depth and position of the needle, which improves the simplicity and accuracy of the operation.

[0020] 4. Easy maintenance and replacement:

[0021] When the needle needs maintenance or replacement, due to the presence of the needle hole, the needle can be quickly pulled out of the fabric to carry out necessary maintenance or replacement, reducing downtime.

[0022] 5. Enhanced adaptability:

[0023] The needle punch design allows the mechanism to accommodate fabrics of varying thickness and material, as the needle punch can penetrate thinner fabrics while not damaging thicker fabrics.

[0024] 5. Security Improvement:

[0025] The needle punch design reduces fabric movement during operation, thus reducing the risk of operator injury due to improper fabric movement.

[0026] 6.Production efficiency:

[0027] Due to the improved stability and reliability of fabric gripping, sewing machines can be operated at higher speeds, thus improving production efficiency.

[0028] 7. Energy saving and environmental protection:

[0029] The design of the needle-punched cloth-grabbing mechanism reduces unnecessary pulling and damage to the cloth, thereby reducing material waste and conforming to the production concept of energy conservation and environmental protection.

[0030] In summary, the design of the needle grabbing mechanism provides an efficient, reliable and cost-effective automation solution for the garment processing industry by improving the stability of fabric grabbing and the durability of needle punching. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of Example 1.

[0032] Figure 2 It is a structural schematic diagram of the cloth grabbing block of Example 1.

[0033] Figure 3 It is a schematic structural diagram of the slot-type seat body of Example 1.

[0034] Figure 4 It is a schematic diagram of the structure of Example 1 after the groove-type seat body and the fastener are hidden.

[0035] Figure 5 It is a schematic diagram of the structure of the cloth grabbing block, adjusting plate, gasket and fastening screw of embodiment 2.

[0036] Figure 6 yes Figure 5 A partial enlarged schematic diagram of .

[0037] Figure 7 yes Figure 5 Schematic diagram of component separation.

[0038] Figure 8-9 They are Figure 7 Schematic diagram of the upper and lower parts.

[0039] Numbers in the figure: cloth grabbing block -1, groove -11, needle hole -12, auxiliary needle hole -13, guide hole -14, slope -15, avoidance hole -16, acupuncture -2, cylinder -3, groove seat body -4, needle seat -5, guide rod -51, adjustment plate -6, damping convex -61, gasket -7, fastening screw -8. DETAILED DESCRIPTION

[0040] The technical solution of this patent is further described in detail below in conjunction with specific embodiments.

[0041] Embodiment 1, as Figure 1-4 The needle-punched cloth-grabbing mechanism shown in the figure comprises a cloth-grabbing block 1 which is in the shape of a cube as a whole and five slender needles 2. The lower end face of the cloth-grabbing block 1 is provided with a groove 11 which passes through the front and rear sides thereof. When the cloth-grabbing block 1 is pressed against a stack or a piece of cloth on a horizontal surface, a part of the cloth piece on the uppermost layer is arched and enters the groove 11. Five axially horizontal needle holes 12 which pass through the groove 11 are provided on the right side face of the cloth-grabbing block 1, near the lower end face thereof. The five needles 2 are respectively matched with the five needle holes 12 in clearance. Under the action of the driving mechanism, the needle holes 2 are moved The needle tip passes through the needle hole 12 and penetrates into or out of the cloth piece entering the groove 11; the driving mechanism includes a cylinder 3 with a stroke in the left and right directions, and a groove-shaped seat body 4, the cylinder 3 is fixedly arranged at the right end of the groove-shaped seat body 4, the cloth grabbing block 1 is fixedly arranged at the left end of the groove-shaped seat body 4, a needle seat 5 is fixedly arranged on the piston rod of the cylinder 3, and the five needles 2 are fixedly arranged on the needle seat 5; two guide rods 51 with an axial direction in the left and right directions are also fixedly arranged on the needle seat 5, and two guide holes 14 corresponding to the guide rods 51 are also provided on the cloth grabbing block 1, and the guide rods 51 and the guide holes 14 are slidably matched. The cooperation between the guide holes 14 on the cloth grabbing block 1 and the guide rods 51 ensures that when the needle 2 penetrates into or out of the cloth, the needle seat 5 can move smoothly along the predetermined straight path of the cloth grabbing block 1. A avoidance hole 16 for avoiding the piston rod is provided in the middle of the right side surface of the cloth grabbing block 1.

[0042] The depth of the groove 11 can be precisely set according to the thickness of the topmost layer of fabric, ensuring that the needle 2 does not penetrate too deeply and affect the fabric layer below. Grasping only the topmost layer of fabric can avoid unnecessary interference with the entire fabric stack, thereby improving the processing quality of the final product. The needle hole 12 is close to the lower end surface of the fabric grabbing block 1, so that the groove 11 can be designed to be as shallow as possible. The smaller groove depth and pressure can make the fabric arch up and enter the groove 11 faster, increase the speed of fabric grabbing, and further improve production efficiency. The shallow groove design allows the mechanism to adapt to fabrics of different thicknesses more easily, because it does not require a lot of pressure to make the fabric and the needle 2 cooperate correctly. The fabric is subjected to less pressure when being penetrated by the needle 2, which helps to reduce damage to the fabric, especially for fragile or sensitive fabrics. Through the coordinated work of these components, more than two needle-punched fabric grabbing mechanisms can efficiently grab fabrics and provide stable fabric support during sewing or other fabric processing. The design of the entire mechanism takes into account stable grasping of fabrics, reduction of damage, improvement of production efficiency, and ease and safety of operation.

[0043] In another preferred embodiment, five auxiliary needle holes 13 are provided on the left side of the cloth grabbing block 1, near its lower end surface, and are axially horizontal and pass through the groove 11. The five auxiliary needle holes 13 correspond to the five needle holes 12 one by one, and the needle tip of the acupuncture needle 2 can enter or leave the auxiliary needle hole 13 under the action of the driving mechanism. The auxiliary needle hole 13 is trumpet-shaped at the side opening of the groove 11. The auxiliary needle hole 13 provides a support point for the tip of the acupuncture needle 2, reducing the deviation or bending of the acupuncture needle caused by pulling the cloth. The trumpet-shaped design of the auxiliary needle hole 13 helps to guide the acupuncture needle 2 to penetrate the cloth correctly. If the acupuncture needle 2 is slightly bent during use, the trumpet-shaped auxiliary needle hole 13 can be used as a correction point to help the acupuncture needle return to the correct position or state.

[0044] In another preferred embodiment, the right side of the groove 11 is a slope 15 that expands downward. The slope 15 design helps the cloth to be more easily arched and enter the groove 11 under the pressure of the lower end surface of the cloth grabbing block 1, thereby improving the naturalness and smoothness of the contact between the cloth and the mechanism. The slope 15 can reduce the resistance of the cloth when it is pushed into the groove 11, thereby reducing the damage to the cloth caused by friction. The slope 15 helps to fix the cloth and reduce the possibility of the cloth slipping in the groove 11, which is very important for keeping the cloth in a stable position during sewing.

[0045] Embodiment 2, as Figure 5-9 As shown, based on the embodiment 1, this embodiment has the following improvements: it includes an adjustment sheet 6 and more than one gasket 7 whose size is slightly smaller than the size of the groove 11. This embodiment shows four gaskets 7, and the screws of four fastening screws 8 pass through the adjustment sheet 6 and the gasket 7 and are screwed to the cloth grabbing block 1. Such a design can adjust the depth of the groove 11 by increasing or decreasing the number of gaskets 7, so that the mechanism can adapt to fabrics of different thicknesses, thereby increasing its versatility and flexibility. Using the fastening screw 8 to pass through the adjustment sheet 6 and the gasket 7 and be screwed to the cloth grabbing block 1 provides a simple and accurate method for adjusting the depth of the groove 11. The process of increasing or decreasing the gasket 7 is simple, and the operator can quickly adjust the mechanism to adapt to fabrics of different thicknesses, thereby reducing the setting time. Since the same mechanism can be adjusted to adapt to fabrics of different thicknesses, the need for designing different equipment specifically for fabrics of different thicknesses is reduced, thereby reducing the production cost. By accurately controlling the depth of the groove 11, it is possible to ensure that the needle 2 accurately penetrates the target fabric layer, avoids damaging the lower layer of fabric, and improves the processing accuracy. This design provides more autonomous adjustment options, allowing operators to adjust the equipment according to actual needs and improve user experience.

[0046] In another preferred embodiment, the lower surface of the adjusting plate 6 is provided with damping protrusions 61 arranged vertically and horizontally. The design of the damping protrusions 61 helps the cloth to arch in a wave shape, provides better cloth positioning, and ensures that the needle 2 can penetrate the cloth evenly at multiple points. Multi-point penetration can improve the uniformity of cloth grabbing and reduce uneven pulling of the cloth during movement, thereby improving the quality of sewing or other cloth processing. The wave-shaped arch formed by the damping protrusion 61 helps to adapt to cloths of different elasticity and thickness, so that the mechanism can handle more types of cloth. The wave-shaped arch can reduce the possibility of the cloth being penetrated multiple times at the same point, thereby reducing damage to the cloth. The wave-shaped arch helps to increase the friction between the cloth and the cloth grabbing block 1, and reduce the slippage of the cloth during movement.

[0047] The above describes in detail the preferred implementation of this patent, but this patent is not limited to the above implementation. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of this patent.

Claims

1. A needle-punched cloth-grabbing mechanism, comprising a cloth-grabbing block (1) which is in the shape of a cube as a whole and a plurality of slender needles (2), characterized in that: The lower end surface of the cloth grabbing block (1) is provided with a groove (11) which passes through the front and rear sides thereof. When the cloth grabbing block (1) is pressed against a stack or a piece of cloth on a horizontal surface, a part of the cloth on the top layer is arched and enters the groove (11). A plurality of axially horizontal needle holes (12) which pass through the groove (11) are provided on the right side surface of the cloth grabbing block (1) near the lower end surface thereof. The plurality of needles (2) are respectively fitted with the plurality of needle holes (12) in clearance. Under the action of the driving mechanism, the needle tips of the needles (2) pass through the needle holes (12) and penetrate into or out of the cloth piece entering the groove (11).

2. The needle-punched cloth grabbing mechanism according to claim 1, characterized in that: A plurality of axially horizontal auxiliary needle holes (13) penetrating the groove (11) are provided on the left side surface of the cloth grabbing block (1) near its lower end surface. The plurality of auxiliary needle holes (13) correspond to the plurality of needle holes (12) one by one. Under the action of the driving mechanism, the needle tip of the acupuncture (2) can enter or leave the auxiliary needle hole (13).

3. A needle-punched cloth grabbing mechanism according to claim 2, characterized in that: The auxiliary needle hole (13) is in a trumpet shape at the side opening of the groove (11).

4. The needle-punched cloth grabbing mechanism according to claim 1, characterized in that: The driving mechanism comprises a cylinder (3) with a stroke in the left-right direction, and also comprises a groove-shaped seat body (4), the cylinder (3) being fixedly arranged at the right end of the groove-shaped seat body (4), the cloth grabbing block (1) being fixedly arranged at the left end of the groove-shaped seat body (4), a needle seat (5) being fixedly arranged on the piston rod of the cylinder (3), and a plurality of the needles (2) being fixedly arranged on the needle seat (5); more than two guide rods (51) with an axial direction in the left-right direction are also fixedly arranged on the needle seat (5), and more than two guide holes (14) corresponding to the guide rods (51) are also provided on the cloth grabbing block (1), and the guide rods (51) and the guide holes (14) are slidably matched.

5. The needle-punched cloth grabbing mechanism according to claim 1, characterized in that: The right side surface and / or the left side surface of the groove (11) is a slope surface (15) that expands downwards and outwards.

6. The needle-punched cloth grabbing mechanism according to claim 1, characterized in that: A clearance hole (16) for evading the piston rod is provided in the middle of the right side surface of the cloth grabbing block (1).

7. The needle-punched cloth grabbing mechanism according to claim 1, characterized in that: It also includes an adjustment sheet (6) whose size is slightly smaller than that of the groove (11) and one or more gaskets (7), and the screw rods of a plurality of fastening screws (8) pass through the adjustment sheet (6) and the gasket (7) and are screwed to the cloth grabbing block (1).

8. The needle-punched cloth grabbing mechanism according to claim 7, characterized in that: The lower surface of the adjustment sheet (6) is provided with damping protrusions (61) arranged vertically and horizontally.

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